3. Which of the following is the correct mathematical expression to use to calculate the pH of a 0.10 Maqueous Ba(OH)2 solution at 25°

Question

3. Which of the following is the correct mathematical expression to use to
calculate the pH of a 0.10 Maqueous Ba(OH)2 solution at 25°C ?

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Verity 3 years 2021-08-28T17:34:06+00:00 1 Answers 29 views 0

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  1. Jezebel
    0
    2021-08-28T17:36:05+00:00
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    Answer:

    The pH of a 0.10 Maqueous Ba(OH)2 solution at 25°C is 13.30

    Explanation:

    The balanced equation is Ba(OH)2(s)→Ba2++2OH−

    This indicates that the concentration is 0.2 M

    We will find H+ ion concentration

    As we know that

    [H+][OH−]=1.0×10−14M

    Given –  

    [OH−]=2.0×10−1M

    Putting value of [OH-] in above equation we get –  

    [H+]=5.0×10−14M

    pH=−log10[H+]

    pH=−log10[5.0×10−14] = 13.30.

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